ʻO nā ʻAlders nā lāʻau deciduous. Hoʻokumu lākou i kahi genus me kahi o 35 mau ʻano ʻano like ʻole. E ulu ana ka alder uliuli, alder hina, a me ka alder eleele ma Central Europe. Pili ka alder i ka birch.
ʻO ka mea kūikawā e pili ana i nā alders ko lākou aʻa. Hoʻokumu lākou i nā nodules kūikawā e hana pū ana me ka bacteria. Hoʻololi pū lākou i ka nitrogen i loaʻa i ke ʻano i hiki i nā alders ke hoʻohana iā ia i mea momona. No laila, hiki i nā ʻalders ke noho i kahi liʻiliʻi o nā meaʻai ma ka lepo no nā mea kanu ʻē aʻe.
Mahalo i kēia waiwai, ʻike pinepine ʻia nā alders e like me nā mea kanu mua, no ka laʻana, ma hope o kahi avalanche. ʻO ia ke kumu i kapa ʻia ai lākou nā mea kanu paionia. Makemake nā alder hina a ʻeleʻele e ulu ma nā kapa a i ʻole ma nā wahi pulu. He kakaikahi na mea ai iloko o ka lepo malaila.
ʻO ka lāʻau ʻAlder he mea kaumaha a maʻalahi ke hana pū me. I ka wā ma mua, ua hoʻohana mua ʻia i ka hana ʻana i ka lanahu, i hoʻohana ʻia no ka hana ʻana i ka pauda. Hoʻohana ʻia ka lāʻau alder no nā lako. He kūpono loa ia no nā pahu pahu a me nā mea kani like. Eia naʻe, ʻaʻole ʻae ka lāʻau alder i ka makū. No laila ʻaʻole hoʻohana ʻia no nā puka mua a i ʻole nā paia o waho.
Ma ʻEulopa Waena, pilikia nā alders. ʻO ka pseudofungus ka mea e pala ai kona aʻa. ʻAʻole ʻo nā haʻihaʻi maoli, akā pili pili loa i ka algae.